How would you rate this back/bi routine?

How would you rate this back/bi routine?

Bear in mind some things I can't do due to lower back problems. I've been training for many years but only seriously for about 3, stats are 6'0 age 27 15st 7lb, bodyfat is around 22%. I usually work in anything above the 5 rep range, going for size, as I find training for strength gives me a lot of aches and pains. ALSO because of my work I can only train 3 out of 8 days. so usually instead of a 3 days split over 7 days, I do the same thing but over 8.